20739968260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{701}}^1\times {\mathrm{743}}^1$

素因数の和:1645

約数の個数: 96

約数和(自身を含む): 47908433664

約数和(自身を除く): 27168465404

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 181, 220, 362, 701, 724, 743, 905, 1402, 1486, 1810, 1991, 2804, 2972, 3505, 3620, 3715, 3982, 7010, 7430, 7711, 7964, 8173, 9955, 14020, 14860, 15422, 16346, 19910, 30844, 32692, 38555, 39820, 40865, 77110, 81730, 126881, 134483, 154220, 163460, 253762, 268966, 507524, 520843, 537932, 634405, 672415, 1041686, 1268810, 1344830, 1395691, 1479313, 2083372, 2537620, 2604215, 2689660, 2791382, 2958626, 5208430, 5582764, 5729273, 5917252, 6978455, 7396565, 10416860, 11458546, 13956910, 14793130, 22917092, 27913820, 28646365, 29586260, 57292730, 94272583, 114585460, 188545166, 377090332, 471362915, 942725830, 1036998413, 1885451660, 2073996826, 4147993652, 5184992065, 10369984130, 20739968260]

約数ペア:

[(1, 20739968260), (2, 10369984130), (4, 5184992065), (5, 4147993652), (10, 2073996826), (11, 1885451660), (20, 1036998413), (22, 942725830), (44, 471362915), (55, 377090332), (110, 188545166), (181, 114585460), (220, 94272583), (362, 57292730), (701, 29586260), (724, 28646365), (743, 27913820), (905, 22917092), (1402, 14793130), (1486, 13956910), (1810, 11458546), (1991, 10416860), (2804, 7396565), (2972, 6978455), (3505, 5917252), (3620, 5729273), (3715, 5582764), (3982, 5208430), (7010, 2958626), (7430, 2791382), (7711, 2689660), (7964, 2604215), (8173, 2537620), (9955, 2083372), (14020, 1479313), (14860, 1395691), (15422, 1344830), (16346, 1268810), (19910, 1041686), (30844, 672415), (32692, 634405), (38555, 537932), (39820, 520843), (40865, 507524), (77110, 268966), (81730, 253762), (126881, 163460), (134483, 154220)]